MEDICAL DEVICE FOR BREAST SURGERY

Abstract

A device is initially rolled up can unfold into its original spherical dome shape after insertion through a surgical incision.

Claims

1. A medical device for breast surgery said medical device originally constituted by a quadratic matrix of hemispherical or paraboloid or ellipsoid or hyperboloid shape, said quadratic matrix having a three-dimensional development, said matrix being rolled to obtain a solid of revolution said solid of revolution having a central section greater than the distal sections and said solid of revolution being tapered at the extremities.

2. Medical device according to claim 1 wherein it is equipped with a restraint device.

3. Medical device according to claim 1, wherein the quadratic matrix is made of collagen membrane having shape memory.

4. Medical device according to claim 1, wherein the restraint device is in biomaterial.

5. Medical device according to claim 1, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

6. Medical device according to claim 2, wherein the quadratic matrix is made of collagen membrane having shape memory.

7. Medical device according to claim 2, wherein the restraint device is in biomaterial.

8. Medical device according to claim 3, wherein the restraint device is in biomaterial.

9. Medical device according to claim 6, wherein the restraint device is in biomaterial.

10. Medical device according to claim 2, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

11. Medical device according to claim 3, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

12. Medical device according to claim 4, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

13. Medical device according to claim 6, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

14. Medical device according to claim 7, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

15. Medical device according to claim 8, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

16. Medical device according to claim 9, wherein once inserted in a surgical wound the solid of revolution returns at the original hemispherical or paraboloid or ellipsoid or hyperboloid shape.

Description

[0054] The invention concerned by this patent application is illustrated in Tables 1 and 2 (enclosed), where:

[0055] Table 1/2

[0056] FIG. 1

[0057] CDome with ECM matrix

[0058] ORestraining device

[0059] FIG. 2Device concerned by the patent application.

[0060] SMMedian section

[0061] SDDistal sections

[0062] FIG. 3View of device section concerned by the patent application.

[0063] Table 2/2

[0064] FIG. 4

[0065] A-A Spherical dome in ECM

[0066] FIG. 5

[0067] Hair volume

[0068] Kcollagen

[0069] The invention concerned by this patent application is illustrated in FIG. 2. It presents as a cylindrical solid obtained by rolling a spherical dome onto itself (A-A FIG. 1,3,4,5). The median central section (SM) is larger than the distal sections (SD). Particularly the spherical dome (A-A) is made up of extracellular matrix (ECM) obtained by means of specific plastic deformation processing of a flat ECM sheet to obtain a curved square shape, in this case concave/convex with 3D development that can be traced to a lens-like shape.

[0070] Since the dome (A-A FIG. 1,4,5) has a memory of shape, once rolled up and inserted into the human body, it unfolds into a curved square shape (A-A FIG. 4), with 3D development resembling a lens-like shape.

[0071] In the conformation illustrated in FIG. 2, the device is introduced through a small surgical incision (4/6 cm), and on reaching the site, with its memory of shape it regains the convex dome shape that matches the concavity of the submammary groove, whose shape is also derived from the sphere.

[0072] A retention ring can be preferably but not solely placed at the centre to act as a guide for the device prior to insertion on site.

[0073] The retention device O, preferably but not solely a ring, has a dual function of maintaining the dome A-A rolled up to inhibit the memory of shape that is inclined to unfold dome A-A, and to facilitate introduction of the device through the surgical incision. Indeed, the retention device O acts as a guide to insert the device into the mammary groove.

[0074] The invention produced as described allows introduction of the device through a surgical incision that is a few centimeters long (range 2/6), to then regain its industrial shape of spherical dome A-A inside the breast, as it will not be restrained anymore by the retention device O. The dome will establish intimate contact with the mammary groove, whose shape results from the sphere. The above is studied to both reinforce the submammary groove and to avoid dead spaces between tissue structures.

[0075] Particularly the invention described in this patent application is made up of an active biomaterial (ECM), by way of non-exhaustive example, heterologous or homologous deantigenated dermis, heterologous or homologous deantigenated pericardium, heterologous or homologous deantigenated bladder or any other bioactive biomaterial (ECM) made of collagen.

[0076] Upon unfolding, the shape of the invention adapts to the floor of the groove, a spherical curve on a spherical curve, thus generating, through intimate contact, new reinforcing tissue and reducing the risk of the mammary prosthesis slipping under it.